baber/WOPTO huggingface dataset:
Patent GB-1105605-A (GB)
Title: Oxide process
Inventor: COMYNS ALAN EDWARD
IPC: C01B19/00
Filed: 1964-04-29
Abstract: A process for the production of metal oxide particles by the oxidation of a halide of a metal in the vapour state comprises passing an electric discharge between electrodes, so as to form a high-intensity arc, at least one of the electrodes containing a nuclei-forming substance which is vaporized by the temperature produced by the discharge and so liberated from the electrode, and directing the liberated nuclei-forming substance into a hot reaction zone in which the metal halide vapour is reacted with an oxidizing gas to form the corresponding metal oxide, the liberated nuclei-forming substance serving to provide nuclei for the particles of metal oxide. The metal halide may be the chloride, but not the fluoride.  Oxides which may be produced by this method are alumina, zirconia, silica and oxides of iron, vanadium, manganese, chromium, arsenic, beryllium, boron, gadolinium, germanium, hafnium, lanthanum, phosphorus, samarium, scandium, strontium, tantalum, tellurium, terbium, barium, thorium, tin, yttrium, ytterbium, zinc, niobium, gallium, antimony, lead and mercury.  The discharge may be supplied from a source of direct current. Specified nuclei-forming substances are the metals titanium, aluminium, zirconium or silicon and solid compounds of metals, for example the halides (such as the chlorides) of aluminium or zirconium or lower halides of titanium, or the oxides or the carbides of these metals.  Numerous other suitable elements are specified.  The nuclei-forming substance may be mixed with a material of high conductivity such as alumina, zirconia, titania or silica when a metal is used as the nuclei-forming substance. The mixture may be compressed and heated, say to 800 DEG  C. to 1500 DEG C., to remove volatile impurities.  The nuclei-forming substance may comprise 10 to 90% by weight of the electrode. The specific resistance of the electrodes may be in the range 0.01 to 0.5 ohm cm. The carbon content should be the minimum amount to give maximum conductivity.  The material may be directed into the reaction zone by a gas stream, which may be introduced through a perforated collar (which may be cooled) surrounding the electrode or electrodes containing the nuclei-forming substance or the discharge may be formed between the electrodes in an enclosed zone and a gas may be introduced into that zone in such a manner as to sweep the substance into the reaction zone.  Alternatively, the gas may be blown through the electrode which is hollow. The reaction zone may be an empty chamber or a fluidized bed of particles.  Addition to the metal halide which is oxidized in the reaction zone, minor proportions of other materials, such as other metal halides, may also be introduced so as to modify the properties of the final product. Specified materials are water, silicon tetrahalide, aluminium trihalide, zirconium tetrahalide, lower halide of titanium, phosphorus halide, antimony halide, and/or alkali metal or alkaline earth metal compounds.  Such amounts may be in the range of 0.001 to 10% by weight of the oxide formed.
Patent GB-990764-A (GB)
Title: Solid denture cleaner
Inventor: MYERSON RICHARD LOUIS
IPC: A61K49/04
Filed: 1963-05-06
Abstract: A solid denture cleaner, for dilution in water, consists of chlorinated trisodium phosphate and a rinse indicator, said rinse indicator being a water insoluble, inert, finely divided, noncaking, solid, wettable opacifying powder which is readily dispersible in aqueous solutions by agitation to cause turbidity and which is substantially inert to water, said chlorinated trisodium phosphate and denture materials, said said chlorinated trisodium phosphate containing trisodium phosphate in an amount equal to 3.0 mols. per mol. of available chlorine and sufficient to maintain aqueous solutions of said composition at a pH of at least 11 at all dilutions down to 750 parts of available chlorine per million parts of solution, said indicator being one which will not reduce the pH of the solution below 11, at all dilutions down to 750 parts of available chlorine per million parts of solution, at least the major portion of said composition being chlorinated trisodium phosphate, the proportion of indicator being greater than 3% by weight of the chlorinated trisodium phosphate. Specified indicators having particle sizes of below 1 micron are kaolin, calcium carbonate, calcium phosphate, pigments and ground glass. Aqueous solutions of the composition contain at least 1500 parts of available chlorine per million parts of solution.
Patent GB-646431-A (GB)
Title: Improvements in and relating to flame-proof fittings for double-ended tubular electric lamps
IPC: F21V25/12
Filed: 1947-07-07
Abstract: 646,431. Lamp-holders. BRITISH THOMSON-HOUSTON CO., Ltd., and WIDNALL, F. July 7, 1947, Nos. 17880/47 and 12248/48. [Class 38 (i)] [Also in Group XI] A flame-proof tubular lamp fitting for use in an incendiary atmosphere comprises a pair of contacts in the supply circuit so positioned to be held in engagement by one end 1a, 1b of the lamp 1, the contacts moving apart if the lamp envelope fractures thereby breaking the supply and ensuring that the lamp cathode is dead. In one form, a holder 2a, in a flameproof fitting having a vitreous tube 3, which encloses the lamp, receives the lamp cap 1a and is provided with a switch 7 so positioned that if the envelope fractures the switch opens. The switch is actuated by a spring plunger 6 which projects through the holder to abut the cap and on the fracture of the envelope to eject the lamp. Alternatively the contacts are the lamp pins and the holder sockets and are associated with a spring-loaded piston 14 in a cylinder 13 held on the fitting by an end cap 16. The stem 17 of the piston abuts the lamp cap 1b so that when the envelope fractures the lamp is ejected, thereby moving the pins and sockets apart. Preferably the fitting carries a switch at each end and according to Provisional Specification the tube 3 may have end caps cemented thereto and supporting the switches. Specification 604,237 is referred to.
Patent GB-151583-A (GB)
Title: Method of producing cyanamide from calcium cyanamide
IPC: C01C3/16
Filed: 1920-06-30
Abstract: Cyanamide practically free from dicyandiamide is obtained in solution by supplying successive quantities of calcium cyanamide to water or a cyanamide solution while supplying enough carbon dioxide to maintain the solution neutral or only slightly alkaline.  By starting with a cyanamide solution, very strong solutions can be obtained.  The reaction is effected at a temperature not above 70 DEG  C., and the carbon dioxide is preferably supplied under pressure, being blown into the solution by nozzles; or other means of bringing the gas into intimate contact with the liquid may be employed, such as beaters; or the solution containing calcium cyanamide may be sprayed into an atmosphere of carbon dioxide.  The carbon dioxide may be pure or mixed with other gases, as for instance combustion or lime kiln gases.
Patent GB-807380-A (GB)
Title: Improvements in or relating to the construction of electrical equipment
IPC: H05K7/16
Filed: 1956-06-11
Abstract: 807,380. Electrical equipment assemblies. CENTRAL ELECTRICITY GENERATING BOARD, and HASLER, E. F. June 7, 1957 [June 11, 1956], No. 18007/56. Class 37. A mounting arrangement for electrical equipment comprises a main structure and a plurality of detachable units which plug into the main structure by means of multi-pin connectors, the main structure and the detachable units being each provided with a portion of a hinge, those on the units being adapted to engage detachably with that on the main structure and the hinges resulting from the engagement between the respective hinge portions being so positioned that the multi-pin connectors may be engaged or disengaged by rotation of the detachable units about their respective pivotal axes. In a first embodiment, Fig. 2, the main structure 10 is provided with sockets 15 on the front face thereof, each socket 15 being engageable with a respective detachable unit 20 provided with a multi-pin plug 16. A hinge member 17 runs along the upper edge of the structure 10; a co-operating member 18 having a hinge portion 23 is provided on each of the units 20. After assembly of a unit 20 upon the structure 10 by first causing interengagement between the members 17 and 18 and then between the connectors 15, 16, the unit may be secured in place by means of a captive screw 24. The Specification also refers to the use of spring clips as fastening means. In a second embodiment, Fig. 3, a plurality of units 36, of which one is shown in Fig. 4, are plugged into a main structure 30 by first engaging a hinge portion 44 on each unit with a hinge portion 45 on the structure 30 and rotating the unit to cause engagement between plugs and sockets 42, 43 and 46, 47. The complete assembly may be arranged in a drip-proof housing.
Patent GB-399287-A (GB)
Title: Improvements relating to machines for mowing lawns and the like
IPC: A01D34/42
Filed: 1930-06-27
Abstract: 399,287. Lawn-mowers. WEBB & CO., Ltd., H. C. and TAYLOR, F. W., Tame Road, Witton, Birmingham. June 27, 1932, No. 18030. [Class 6 (ii).] A motor or other mower is provided with a grass-box fitted with a ground wheel or wheels and a handle which serves also to secure the box detachably to the mower. The grass box d is carried by pivot pins c in the slotted ends of two arms b secured to the side plates a of the mower. Two arms e are also pivoted to the box at c and are each fitted with a ground wheel f at one end. The other ends of arms e are joined to form a handle g and a cross bar q is provided for strength. The handle g is secured to a cross bar i on the lawn-mower by a clip k. An adjustable stop l is provided in a slot in the box d adapted to rest on the arms b and thus adjust the position of the box relatively to the rotary cutter.
Patent GB-702327-A (GB)
Title: Control means for operating a pilot valve or relay controlling a source of power for effecting a cyclic operation in a plant or installation
IPC: C10J3/72
Filed: 1950-07-19
Abstract: 702,327. Time switches. HUMPHREYS & GLASGOW, Ltd., and MITCHAM, G. E. May 30. 1951 [July 19, 1950], No. 18081/50. Class 38(5) [Also in Group XXIX] Control means for operating a pilot valve or electrical relay 32, Fig. 1, controlling the source of power for effecting a cyclic operation in a plant or installation, comprises a beam 17 for operating the valve or relay 32 and urged by a spring 22 to contact the profiles of rotating cams 25, 26, movement of either end of the beam towards the axis of its adjacent cam, permitted by depressions 34<SP>1</SP>, 35<SP>1</SP>, operating the valve or relay in one direction or the other through links 30, 31, bell-cranks 28, 29, a wheel 36, Fig. 2, a member 15 slidable on bars 37, and a rod 38. When the plant operation initiated by actuation of the valve or relay is completed, the beam is moved out of the cam depression by a device 40 to which power is automatically supplied, and which acts through a rod 39, a member 16 slidable on the bars 37, and a wheel 56 which engages the appropriate belt-crank. A projection 27, Fig. 3, is formed on each cam and cooperates with a bar 41 slidable in the beam 17 and engaging a trip lever 42 which, when turned, triggers mechanism which shuts down the plant. This occurs when the projection 27 engages the bar 41 as would happen if the plant operation is not successfully completed or if for any other reason the device 40 fails to operate. The bellcranks may be made inoperative by turning a cam 51 through 90‹ on its shaft 52 and the valve or relay may then be hand operated by a lever 53. Two or more control means may be combined to operate in sequence, in which case all the cams 25, 26 are mounted on common shafts 18, 19, respectively, the cams 51 are all on a common shaft 52 for rendering all the control means inoperative simultaneously and interlocking means is provided to prevent operation out of a desired sequence for both automatic and manual operation. Clockwise rotation of a cam 57 raises the beam out of contact with the cams so that each control means may be rendered inoperative individually. The cams are driven from a driving pinion 45 through a gear 46 which engages spur wheels 47, 48 on the cam shafts 18, 19 respectively. In a modification, latches are pivoted on bar 41 for co-operation with the projections 27.
Patent GB-728301-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G21/22
Filed: 1952-07-17
Abstract: 728,301. Tracks for overhead conveyers. KING, D. M. June 18, 1953 [July 17, 1952], No. 18136/52. Class 104 (2). A track assembly, for a conveyer system in which load-carrying trolleys are propelled along an overhead track by pusher dogs carried by an endless driving chain suspended from trolleys running on a track disposed above the load-carrying trolley track has two vertically-spaced tracks formed by oppositely facing L-shaped elements 10, 11 supported at spaced intervals along their length by L-shaped brackets 12 each bracket at its foot supporting one of the L-shaped track units forming the lower track 10 and the upper track L-shaped units forming the track 11 being disposed between the vertical limbs of the brackets 12 and suspended from bolts 15 interconnecting the brackets 12. The lowermost track units 10 are held in position by clips 13 and countersunk bolts 14. The tracks are spaced by distance pieces 16 mounted on the bolts 15. Cover tracks 17 are provided above the track 11 at vertical bends and curves.
Patent GB-147551-A (GB)
Title: Improvements in harmonichords
IPC: G10D1/12
Filed: 1920-07-02
Abstract: 147,551. Herltommer, A. July 16, 1919, [Convention date]. Keyboard stringed instruments; bows.-in a stringed instrument the strings are placed horizontally across the framing, and are actuated by a series of bows consisting of endless bands, preferablv made of woven raw silk, running over pulleys on supporting frames, which are moved into operative position and driven, as required, under the control of a keyboard of typewriter form arranged in banks corresponding each to an octave, but having the finger-plate of each key divided into two parts, of which one actuates a link connected to the octave above so that either a single note, or the note and its octave, may be sounded according as one or both parts of the finger-plate are struck. Fig. 1 shows a vertical section of the instruments, Fig. 6 a side view, and Fig. 7 a plan of one of the bows and its supports, and Fig. 10 shows in side view the connexion of the second part of one of the keys with the corresponding octave. Each bow b is carried on pulleys b', b<2> mounted in a frame consisting of side pieces c, c' normally pressed upwards at one end by the spring e<2>. but raised centrally, as required, by the rod h. so that the bow is brought into contact with the trichord strings a while being driven through the pulley d<1>. Each key is provided with two separated finger plates g, g<2> carried by levers g<1>, g<3>, as indicated in Fig. 10, the lever g<3> connected by a slotted link g<4> to the lever g<1> of the corresponding octave. The part g is depressed alone to sound the primary note, and the parts g, g<2> together in order to sound the note and its octave.
Patent GB-1346091-A (GB)
Title: Polymerization of conjugated diolefins
IPC: C08F36/04
Filed: 1971-06-01
Abstract: 1346091 Butadiene polymerization catalyst GOODYEAR TIRE & RUBBER CO 1 June 1971 [8 July 1970] 18252/71 Heading C3P The polymerization of butadiene, with or without other conjugated dienes, is carried out by means of a catalyst composition comprising, in specified proportions, (i) an organometallic compound of a metal of Group I, II or III, (ii) an organic compound of nickel or nickel carbonyl, (iii) a metal fluoride (including BF 3 ) or complex thereof, and (iv) a compound containing a hydroperoxide group. The catalyst components may be combined in the presence of the monomer or the catalyst may be preformed; in a preferred procedure it is preformed in the presence of a small amount of a conjugated diene. Examples describe the polymerization of butadiene in benzene with catalysts derived from (i) Et 3 Al or (i-Bu) 3 Al, (ii) nickel octanoate, (iii) BF 3 .Et 2 O, and (iv) cumene hydroperoxide, tbutyl hydroperoxide, di-isopropylbenzene hydroperoxide, p-menthane hydroperoxide or hydrogen peroxide. The polymers produced have a high proportion of their butadiene units in the cis-1,4 orientation.
Patent GB-596464-A (GB)
Title: Method of fabrication of light plaster blocks of great absorbing power
IPC: C04B28/14
Filed: 1945-07-17
Abstract: Porous light-weight plaster blocks, for use in building or as insulating-coverings, blotters, or filters for air and dry gases, are made by adding to the plaster, mixed with an excess of water, a material such as lime to increase the pH value, and retarding setting either by adding a substance such as sodium phosphate, borax, sugar, or a colloid, or by heating the water above 60 DEG C. Sodium phosphate serves also as a hardening-agent but other such agents, e.g., alum or glue may also be added.  When thickening p  commences, the mixture is poured into moulds and allowed to set, after which it can be cut to shape and, if desired, covered with a protecting-layer of plaster or cement.  The lime amounts to 2 per cent., and the sodium phosphate to 0.5-1 per cent. of the weight of the plaster. According to an example, the mixture consists of 10 kg. of plaster, 20 1. of water, 200g. of lime and 75g. of disodium phosphate.
Patent GB-695334-A (GB)
Title: Manufacture of water-insoluble monoazo dyestuffs
IPC: C09B29/20
Filed: 1951-08-02
Abstract: The invention of the parent Specification is modified by using dyestuffs derived from arylides of 2 - hydroxycarbazole - 3 - carboxylic acid, 3 - hydroxydiphenylene oxide - 2 - carboxylic acid or 3-hydroxydiphenylene sulphide-2-carboxylic acid instead of oxynaphthoic arylides.  The dyestuffs may be used for the same purposes as those of the parent Specification.  In the examples: (1) the dyestuff from diazotized 4-methoxy-3-aminobenzoic p-xenylamide and 2-hydroxycarbazole-3-carboxylic p-chloranilide is mixed with polyvinyl chloride, dibutyl phthalate and titanium dioxide or other filler; the diazo component may be replaced by 4-methyl-3-aminobenzoic p-xenylamide or the coupling component by 3-hydroxydiphenylene sulphide-2-carboxylic o-anisidide; (2) a mixture of a urea-formaldehyde condensate, wood flour and the dyestuff from diazotized 4-methoxy-3-aminobenzoic p-xenylamide and 2 - hydroxycarbazole - 3 - carboxylic anilide is ground together and moulded under pressure.  Specifications 343,164 and 426,564 are referred to.ALSO:The invention of the parent Specification is modified by using as coupling components arylides of 2 - hydroxycarbazole - 3 - carboxylic acid, 3 - hydroxydiphenylene oxide-2-carboxylic acid or 3-hydroxydiphenylene sulphide-2-carboxylic acid, free from water-solubilizing groups such as carboxylic or sulphonic acid. Examples show (1) 4-methoxy (or methyl)-3-aminobenzoic p-xenylamide --> p-chloranilide of the carbazole acid; (2) 4-methoxy-3-aminobenzoic p-xenylamide --> 2 : 5-dimethoxyanilide of the diphenylene oxide acid; (3) 4-methoxy-3-aminobenzoic p-xenylamide --> o-anisidide of the diphenylene sulphide acid; (4) 4-methoxy-3-aminobenzoic p-xenylamide --> 2-naphthylamide of the carbazole acid; (5) as in (1) using the anilide instead of p-chloranilide.  A list of further components is given.  The production of a colour lake is described from (4) prepared in the presence of zinc white and aluminium hydroxide. Specifications 343,164 and 426,564 also are referred to.ALSO:The invention of the parent Specification is modified by using dyestuffs derived from arylides of 2-hydroxycarbazole-3-carboxylic acid, 3-hydroxydiphenylene oxide-2-carboxylic acid or 3-hydroxydiphenylene sulphide-2-carboxylic acid instead of oxynaphthoic arylides.  In an example, the dyestuff from diazotised 4-methoxy-3-amino-benzoic p-xenylamide and 3-hydroxydiphenylene oxide-2-carboxylic 21:51-dimethoxyanilide is mixed with rubber, filling materials, sulphur and a vulcanization accelerator and the mixture hot vulcanized in a press.  Alternatively, rubber may be mixed with the dyestuff and the usual additions, and vulcanized cold by immersion in sulphur chloride in benzene.  Other suitable dyestuffs are listed.
Patent GB-154270-A (GB)
Title: Improvements in door latches
IPC: E05C1/14
Filed: 1919-07-24
Abstract: 154,270. Bunn, C. W. July 24,1919. Latches, sliding.-A sliding latch, specially applicable for motor-car doors, and operable from the inside by a handle rocked in a plane at rightangles to the door, is actuated by a handle 3, Fig. 2, with a squared boss 4 engaging a follower 9 mounted in bearings 5 fixed to the front of the lock-plate 1 and extending into a slot 11 in the latch 2, which is guided by the upturned end 13 of the plate 1 and by a slot 14 therein engaging a fixed pin 15. Movement of the handle round towards the latch nose withdraws the latch, and a coiled spring 17 acting on a cross-bar 18 of the latch returns the parts, a stop 38 limiting the projection. In a modification, Fig 5, the handle 20 formed in two parts connected at 30 for convenience of assembly is pivoted in brackets on the inner face of the lock plate, ard its convex part 26 which projects through the latch 21, is cam. shaped and acts directly on a projection 27 at the rear of the latch to retract it against a spring 17 on movement of the handle round towards the rear of the latch. A key-operated follower 33 may be arranged for opening the door from the outside. Reference has been directed by the Comptroller to Specifications 12975/87 and 10410/92.
Patent GB-1489013-A (GB)
Title: Propagation delay meter
IPC: G01H5/00
Filed: 1975-05-02
Abstract: 1489013 Sound velocity meter PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 May 1975 [6 May 1974] 18432/75 Heading G1G [Also in Division H4] Apparatus for measuring the go-and-return propagation time in water of an acoustic pulse between a transducer and a convex reflector is characterized in that the latter is spaced from the transducer by between ¢ and 1¢ times the length of the Fresnel region of the emitted acoustic pulse. This spacing, together with the reflector shape (see Division H3-5), ensures that the first echo of the emitted pulse is substantially stronger than any second-time-around echo from the reflector or other spurious signals. The embodiment described is for measuring the velocity-of-sound gradient in sea water and comprises a free-flooding housing with the reflector and transducer at respective ends. A triggered pulse generator energizes the transducer, and a threshold circuit responds to the resulting echo pulse to re-trigger the pulse generator. The p.r.p. is thus a measure of acoustic velocity. The PZT transducer is provided with a PZT backing plate sufficiently thick that any reflection from the plate is delayed enough to avoid interference with the required echo pulse from the convex reflector.
Patent GB-497976-A (GB)
Title: Manufacture of laminated materials containing metal
IPC: C09D133/14
Filed: 1937-07-02
Abstract: Polymers of alkyl or alkoxy-alkyl esters of a -alkylacrylic acids are used as adhesives in uniting metal foils or sheets to other materials with the aid of heat and pressure.  Polymerized methyl, iso-amyl, or ethoxyethyl methacrylate may be used, as a preformed film, or sheet, or as a solution, suspension, or emulsion.  A woven, knitted, or matted fabric or a cellulose derivative foil may be coated with a solution, suspension, or emulsion of the resin and placed between the surfaces to be joined.  Softeners such as tricresyl phosphate, dibutyl phthalate, diethyl phthalate, or dibutyl tartrate may be added. Specification 409,550, [Group XXXVIII], is referred to.